What is CVE-2020-8127?

CVE-2020-8127 is a medium-severity vulnerability in Revealjs Reveal.js, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-02-28.

How severe is CVE-2020-8127?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2020-8127 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Revealjs Reveal.js

CVE-2020-8127

Insufficient validation in cross-origin communication (postMessage) in reveal.js version 3.9.1 and earlier allow attackers to perform cross-site scripting attacks.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.012 (64.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Revealjs Reveal.js
N/a Reveal.js — versions Fixed version: 3.9.2

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

support@hackerone.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2020-8127?: CVE-2020-8127 is a medium-severity vulnerability in Revealjs Reveal.js, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2020-02-28.
How severe is CVE-2020-8127?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2020-8127 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.